unresponsive / radiusd - X versus rc.radius start

[WI Cricket]

Hello,
I just joined the list. This is my first post. I tried to review the
archives for something similar but I am not sure if I did find a way
around it. First, is there a difference running FreeRadius using:

rc.radiusd start versus radiusd -X

Here is my set-up. I have two winXP supplicants using TLS for
authentication and one W2K using TTLS-MS-CHAPv2. My FreeRadius is
running on SuSE Linux 10 and my NAS is Linksys WRT54GS running 4.71 +
HyperWRT + Thibor15c (this make not make any difference)

Anyway, what is happening is that all the supplicants seem to work well
using radiusd -X, however the freeRadius server seems unresponsive after
a few hours of running it with rc.radiusd start.

Please let me know if anyone sees an immediate issue with my setup or I
can provide more information if need. I am running 1.1.2 of FreeRadius.
Thank you all for your support and this great software.